Looking to spend ~$800. All I care about is

-watching videos when I'm traveling
-being able to play poker
-surfing the web sitting on my couch
-internal wireless card

I've owned Dell stuff my entire life, and don't mind spending my money with them. Looking at upgrades on their $550 15" model, I see a few things I might want.

9 cell battery (stock 6 cell) for $100 more
Processor, comes with Intel® Pentium® Dual Core T4300 (2.1GHz/800Mhz FSB/1MB cache). Should I look to upgrade this?

There is also a $720 17", but I'm not sure how big a difference 15" vs. 17" will be, what is the consensus grinding poker-wise, should I go with the 17"? Any suggestions about brands, where to buy, etc... would be helpful. I'd like to get it ASAP but if you think I can get a sick deal post-Christmas I might just wait.